<!DOCTYPE html>
<html>
  <head>
    <title>alignment of mmultiscript sub/superscripts</title>
  </head>

  <body>
    <math>
      <mmultiscripts>
        <mspace width="50px" height="50px" mathbackground="red"/>
        <mrow>
          <mspace width="50px" height="10px" mathbackground="blue"/>
        </mrow>
        <mspace width="100px" height="10px" mathbackground="green"/>
        <mprescripts/>
        <mrow>
          <mspace width="50px" height="10px" mathbackground="blue"/>
        </mrow>
        <mspace width="100px" height="10px" mathbackground="green"/>
      </mmultiscripts>
    </math>
    <br/>
    <math>
      <mmultiscripts>
        <mspace width="50px" height="50px" mathbackground="red"/>
        <mspace width="100px" height="10px" mathbackground="green"/>
        <mrow>
          <mspace width="50px" height="10px" mathbackground="blue"/>
        </mrow>
        <mprescripts/>
        <mspace width="100px" height="10px" mathbackground="green"/>
        <mrow>
          <mspace width="50px" height="10px" mathbackground="blue"/>
        </mrow>
      </mmultiscripts>
    </math>
  </body>
</html>
